Results 11 to 20 of about 20,016 (146)

Impact of the non-uniform angular sampling on mechanical signals

open access: yes, 2014
International audienceAngular sampling is a useful tool to study cyclic rotating machine vibrations. It can be implemented by using computer order tracking, directly, or by extracting position information from an acceleration signal.
M. Badaoui, F. Bonnardot
semanticscholar   +2 more sources

Robust real-time estimation of non-uniform angular velocity and sub-pixel jitter in images captured with resonant scanners.

open access: yesOptics Express, 2023
Images captured with resonant scanners are affected by angular velocity fluctuations that result in image distortion and by poor synchronization between scanning and light detection that creates jitter between image rows.
Gastón A Ayubi, A. Dubra
semanticscholar   +1 more source

Ionization phase retrieval by angular streaking from random shots of XUV radiation

open access: yes, 2022
We demonstrate an accurate phase retrieval of extreme ultraviolet (XUV) atomic ionization by streaking the photoelectron in a circularly polarized infrared (IR) laser field.
Anna Li Wang   +6 more
core   +1 more source

Investigation of jitter on full-field amplitude modulated continuous wave time-of-flight range imaging cameras [PDF]

open access: yes, 2021
The time-of-flight (ToF) range imaging cameras indirectly measure the time taken from the modulation light source to the scene and back to the camera and it is this principle that is used in depth cameras to perform depth measurements.
Anthonys, Gehan
core  

Impact of receiver architecture on small satellite optical link in the presence of pointing jitter.

open access: yesApplied Optics, 2020
The pointing jitter originated from the random mechanical vibration of the optical platform and the noise associated with the optomechanical sensor system unquestionably deteriorate the performance of the inter-satellite optical link.
I. Zaman, O. Boyraz
semanticscholar   +1 more source

Numerical simulations of the random angular momentum in convection II: delayed explosions of red supergiants following"failed'' supernovae [PDF]

open access: yes, 2023
When collapse of the iron core in a massive red or yellow supergiant does not lead to an energetic supernova, a significant fraction of the convective hydrogen envelope will fall in towards the black hole formed from the collapsing core.
Andrea Antoni, E. Quataert
semanticscholar   +1 more source

Diffusive Synchrotron Radiation from Relativistic Shocks in Gamma-Ray Burst Sources [PDF]

open access: yes, 2005
The spectrum of electromagnetic emission generated by relativistic electrons scattered on small-scale random magnetic fields, implied by current models of the magnetic field generation in the gamma-ray burst sources, is considered.
G. Fleishman
semanticscholar   +1 more source

Modular, Textile‐Based Soft Robotic Grippers for Agricultural Produce Handling

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces textile‐based pneumatic grippers that transform simple textiles into robust bending actuators. Detailed experiments uncover how cut geometry and fabric selection shape performance. Successful handling of fragile agricultural items showcases the potential of textile robotics for safe, scalable automation in food processing and ...
Zeyu Hou   +4 more
wiley   +1 more source

GOES-R active vibration damping controller design, implementation, and on-orbit performance

open access: yesCEAS Space Journal, 2018
GOES-R series spacecraft feature a number of flexible appendages with modal frequencies below 3.0 Hz which, if excited by spacecraft disturbances, can be sources of undesirable jitter perturbing spacecraft pointing.
B. Clapp   +4 more
semanticscholar   +2 more sources

CMOS‐Integrated Synaptic Photoreceptor Chip Inspired by Insect Visual Processing

open access: yesAdvanced Science, EarlyView.
CMOS‐integrated Si QDs/ReS2 synaptic photoreceptor array mimics the parallel processing and wavelength‐selective strategy of insect vision. By combining intrinsic ultraviolet‐violet sensitivity with synaptic plasticity, the chip enables frontend sensory redundancy reduction without external filters, offering a scalable pathway toward lowpower ...
Jian Chai   +25 more
wiley   +1 more source

Home - About - Disclaimer - Privacy